Webafrica fast to deduct money but poor with fixing problems

Really unhappy!! Got an router with cellc sim about 2 years ago...had not problem but from September 2019 the problems began. The cellc had to be cancelled because of reasons and I had to get an telkom sim instead.(telkom sim only is R499) Got charged for many packages which was frastrating. So I have spoken to someone about a month ago about the cellc package and the person told me they will arrage a courier to collect the router I got 2 years ago and I agreed to it. I phoned a few days after and was told its still pending but they will sort it out. So on the 29th of August I got an invoice for that router that is almost R2000. I phoned the yesterday saying I refused to pay because they should have picked it up weeks ago... The guy told me they will arrage a courier and once they received it i will me refunded. So this morning they deducted over R2700 from my bank account. (R2000 for router and R499 for telkom sim) there is about R200 diffrence? For what i dont know! Its phone call after phone call and nothing gets sorted. I dont always have time to spend about an hour on the phone to fix it. Really frustrated feels like i dont ever want to use their services again.