Unhappy customer

I hv a Vodacom contract from 8years.i had 3 data SIM cards.last year I had problem with Vodacom.i been calling and complaining but nothing happened.i end up cancelling 2 contracts and decided to keep 1 and they upgraded me with new data package.they sent me a router but router was faulty I called and complained so they sent Ram courier to take router back now it’s been a month I m staying without internet but they take money from my account.yesterday I went to vodashop to get a new contrac***** been declined due to low score.after using 8yrs now they r telling me my score is low.very unhappy customer