6. Expenses
6.1 Employee expenses
 
  Group Company  
  31 March  
2020  
Rm  
Restated  
31 March  
2019  
Rm  
31 March  
2020  
Rm  
31 March  
2019  
Rm  
 
  (10 713)  (10 777)  (6 311)  (5 451)   
Salaries and wages (8 563)  (8 766)  (4 329)  (4 233)   
Post-retirement pension and retirement fund (refer to note 30) (623)  (517)  (474)  (517)   
Post-retirement medical aid (refer to note 30) 70   62   70   62    
Post-retirement telephone rebates (refer to note 30) (40)  (41)  (40)  (41)   
Share-based compensation expense (refer to note 25) (328)  (135)  (323)  (126)   
Other benefits* (1 620)  (1 843)  (1 606)  (1 057)   
Employee expenses capitalised to capital projects 391   463   391   461    
* Other benefits include, amongst others, skills development, annual leave, performance incentive, service bonuses, voluntary employee severance/voluntary early retirement and retrenchment package costs and termination benefits. Included in other benefits as at 31 March 2020 is a R1 186 million (31 March 2019: R728 million) expense for voluntary severance, retirement and retrenchment packages.
6.2 Other expenses
 
  Group Company  
  31 March  
2020  
Rm  
Restated  
31 March  
2019  
Rm  
31 March  
2020  
Rm  
31 March  
2019  
Rm  
 
Other expenses          
Included in the other expenses line item are the following expenses: (2 688)  (2 002)  (877)  (559)   
Operating expenses (2 380)  (1 721)  (584)  (308)   
Sundry expenses (207)  (16)  (36)  (5)   
License fees (292)  (255)  (281)  (249)   
Subsistence and travel (87)  (78)   (44)  (47)   
Cost for third-party services (1 431)  (1 220)  –   –    
Image building and market research costs (73)  (64)  (73)  (63)   
Commission (106)  –  (105)  –    
Data procedure expenses (87)  (70)  –   –    
Other (97)  (19)  (45)  55    
Non-operating expenses (308)  (282)  (293)  (250)   
Donations (45)  (65)  (44)  (63)   
Losses (248)  (184)  (248)  (184)   
Other (15)  (32)  (1)  (2)   
6.3 Maintenance
 
  Group Company  
  31 March  
2020  
Rm  
Restated  
31 March  
2019  
Rm  
31 March  
2020  
Rm  
31 March  
2019  
Rm  
 
Maintenance cost has decreased due to the cost-saving initiatives that have been implemented in the current financial year. (3 880)  (4 209)  (4 855)  (4 878)   
6.4 Service fees
 
  Group Company  
  31 March  
2020  
Rm  
Restated  
31 March  
2019  
Rm  
31 March  
2020  
Rm  
31 March  
2019  
Rm  
 
  (3 274)  (2 934)  (2 753)  (2 461)   
Facilities and property management (1 990)  (1 674)  (1 776)  (1 551)   
Consultancy, security and other services (1 284)  (1 260)  (977)   (910)   
6.5 Lease expenses*
 
  Group Company  
  31 March  
2020  
Rm  
Restated  
31 March  
2019  
Rm  
31 March  
2020  
Rm  
31 March  
2019  
Rm  
 
  (478)  (1 182)  (518)  (1 271)   
Land and buildings (121)  (822)  (159)  (915)   
Transmission and data lines (6)  –   –   –    
Equipment (33)  (32)  (36)  (31)   
Vehicles (318)  (328)  (323)  (325)   
* For the year ended 31 March 2020, this amount represents low-value and short-term leases as defined by IFRS 16. Refer to note 13 for the detail on expenses recognised for low-value and short-term leases. The comparative amount represents operating leases as defined by IAS 17. Operating lease commitments are disclosed in note 37.
6.6 Depreciation, amortisation, impairments and write-offs of non-financial assets
 
  Group Company  
  31 March  
2020  
Rm  
Restated  
31 March  
2019  
Rm  
31 March  
2020  
Rm  
31 March  
2019  
Rm  
 
  (6 915)  (5 814)  (6 808)  (5 167)   
Depreciation of property, plant and equipment (4 863)  (4 842)  (4 512)  (4 450)   
Depreciation of right-of-use assets (954)  –   (1 510)  –    
Amortisation of intangible assets (679)  (702)  (579)  (567)   
Write-offs, impairments and losses of property, plant and equipment and intangible assets (414)  (270)   (207)  (150)   
The estimated useful lives assigned to Groups of property, plant and equipment are: Years  Years  Years  Years  
Freehold buildings 5 to 43  10 to 50  10 to 40  10 to 40  
Network equipment          
   Cables 4 to 30  2 to 30  4 to 30  4 to 30  
   Switching equipment 5 to 18  5 to 18  5 to 18  5 to 18  
   Transmission equipment 5 to 18  5 to 18  5 to 18  5 to 18  
   Other 2 to 18  2 to 18  2 to 18  2 to 18  
Support equipment 5 to 13  3 to 13  5 to 13  5 to 13  
Furniture and office equipment 5 to 15  3 to 15  11 to 15  11 to 15  
Data processing equipment and software 3 to 10  3 to 10  5 to 10  5 to 10  
Telkom support services equipment 2 to 20  2 to 20  2 to 20  2 to 20  
The expected useful lives assigned to intangible assets are: Years  Years  Years  Years  
Software and licences 5 to 10  3 to 10  5 to 10  5 to 10  
Trademarks, copyrights and other 4 to 13  4 to 13  4 to 13  4 to 13  

During the year, the Group reassessed the useful lives on various technologies. The reassessment takes into account the Group’s current CAPEX strategy and changes in the technological environment. The reassessment of useful lives decreased the depreciation and amortisation expense at a Company level by R288 million (31 March 2019: R530 million) and decreased the depreciation and amortisation expense at a Group level by R307 million (31 March 2019: R537 million). Refer to note 2.5.1 and note 2.6.13 for the related accounting policies.

The depreciation for the remaining useful life of the Group’s assets will be increased by this amount.