Trying to arrange alternative payment

I need to make arrangements with MTN to split a payment balance over the next 2 months. On 30/3/2015 I send the [Email Removed] a mail with the proof of payment and request to split the remained over April and May. I received a message from their system that the mail was received.<br> Today my service was cut and I tried in vain to contact their call centre via telephone (808 x 9 attempts each about 12 minutes), email [Email Removed] got confirmation that the messages was received) and their fax number that the contact center give on a message.<br> As of yet, my services are still suspended and not one of the only 3 people in the call center has contacted me.