Cant do work properly

I am very disgusted in this Glocell as i have been with you for more then 2years and this is how we get treated, I have paid my contract VIA eft now they want to tell me the amount was reversed never in my life have i reversed a EFT payment my phone was suspended from the 16/2/2018 without any warning i did sent my proof of payment it is now the 20/2/2018 still no response from Glocell when i call they putt me through to accounts but no answer im on hold for 10 - 20min how useless can we get.