Debit order to go through - no response from MTN

We have a business account with MTN. On 14 March '16 i sent all my documents to port over to MTN to Bytes people solutions. A lady responded saying she has sent everything over to MTN. 16 March i followed up requesting if all is in order - she said all documents were forwarded to channel support. On 24 March I emailed again requesting when my phone will arrive as debit order will go off on 31st March - I had no response. On the 29 March I called Bytes people solution - Ref no: NS***3 - to which the response was I should just email the lady I dealt with. I emailed the lady again requesting feedback - no response. I phoned today - her response was I should just log a complaint to MTN. What service is this!! Its ridiculous! Why port in the first place - MTN isn't interested in the business!!