Complain

I have a contact with dstv multichoice since 2019 March ( price lock) I'm paying R523 including decoder and funeral cover per month, today they send an invoice of R734 of which my contract is ending on 29th of April When I call them and make a quiry the consultant said the contract ended on February which is not true and she said she can renew my contract and it will start next month for price lock again and I will pay R505 because I am not taking the decoder than I agreed than I hand up After a minute,the package of price lock was cancelled I called again sicking for explanation of what just happened I found another consultant and she said the first consultant made a mistake about my contract and she can't change,the system does not allow her,she can cancel again the contract and do another one and I will payR429 per month She said should wait on line while she busy withy contract, I waited for 48 minutes until loudsheding started at 19:00 until now she never call me back,I spent 30 minutes to talk with the first consultant and 48 minutes with the second consultant and I was using my airtime,I bought R130 airtime Multichoice is scheming their clients and it's not the first time doing this to me

Please help