Worst company to have a contract with

Dear reader I'm writing this to prevent you from experiencing bad service like I did, joined telkom with a cellphone contract 2018 Dec and later added a second device 2019 May, everything went smoothly until the lock down 2020 in March, I realized telkom had no payment relief, all they did was charge crazy interest of R200. 70 to my account every month, meaning if I failed to pay my account during the previous Covid-19 telkom made R200.70x8 months =R1800 without caring if the customer wants to make Amendments to pay like other companies did. I went in Hatfield store to pay my account manually because my account was in arrears but they turned me away and said they don't take payments in store, and the next day arrears were added to my account even though I explained and tried to pay in time. This is the worst company to have a contract with, they only care about your money, no matter how loyal you've been with them.