MTN not to ne trusted

ok, so i missed one payement and as i had one bad month, but i phoned mtn and made an arrangement to pay them asap withbthe following 3x installments and all wasbgood according to me and them. after 2 weeks i payd my 1st installment and extra for the arrears amount and BAM service suspended, so i payd them again more to open my account and thwn it happend the month after that and then i made a new arrangement and then 2 weeks passed tan it happened again so no i am up to date but still suspended???? tried phoning 808 but call center is closed so no awnser. so i am thinking of moving to cellc and will leave mtn as soon as i can as i have no way to contact them and they do not reply to my emails. tata mtb poor poor service