Mtn prepaid simswap complaint

I have worked for MTN for close to 10years ,went an extra mile for all My customers trying to give the best customer service and today I'm the one in need of good service and I'm now sitting 3 weeks without My number because there's an error they get each time they try to perform a simswap because the number is still under staff billing ,3 MTN branch I went to logged remedy tickets which are not resolved till today,I send an email to complaints department and they said they escalated my query to support but it's now more than 7 days no feedback, I even asked the cancellation department to cancel my number from contract to prepaid which they did with the hope that the prepaid system will allow to perform a simswap but still same error and they just keep logging tickets and nobody knows which is the right department to assist me.i have close to 10 tickets logged which I don't are open for the past 3 weeks nobody cares to assist please Hello Peter assist me in getting my number back Number in question *** Alternative communication email me on ***