Cellc pathetic service

I did an upgrade online in November and I had an issue with the device, I sent the device back to cellc and i was approved for OBF. Up to date I have received no feedback from cellc, i have received pathetic service from the customer service. I called numerous times and my call keeps getting transferred to all departments starting from customer service to repairs to upgrades to follow ups, i am going im circles like its a circus there, I am quite frustrated with this service because i have no device yet cellc expects me to pay the full amount at the end of Jan when the contract states im paying for the phone and sim card. Cellc seems to not be keeping up to their end of the contract and its absolutely ridiculous. I did report this on Hellopeter a week ago and still got no assistance, this is absolutely frustrating. Please can someone Assist me ASAP!!!!!!!