T-Mobile Won't credit my account! Internet New Mexico

Due to relocation for my job I have had no service in my home and for the past 4 months I have been given T-Mobil the time to correct the issue, however, none of the trouble shooting they have done has resolved the issue. I moved here last year in June and I have had extremely poor service in my home. At first I thought it was due to my phone being an older phone but when I upgraded to the IPhone 5 in April of 2013 nothing changed, that's when I brought the issue up to T-Mobile's attention. I was informed they are going to trouble shoot and call me back and nothing. After several calls they finally sent a technician out and the technician filed a report stating the service is extremely poor and let me know a supervisor would be contacting me to further assist me, again no follow up. I visited several stores asking for assistance and got the same response. A manager will be calling you and nothing. From April I have been given the run around and told someone will call me. They ended up sending me signal booster a few weeks ago and that didn't help. During this whole time I was told to maintain my payments and a full credit will be applied to my account in the end. On July 5 at 1:00 am I had an emergency and needed to call the police but due to no service I was not able to dial out. I am a single parent and that is a scary thing to not be able to dial out in an emergency. I called T-Mobile on July 5 and let them know what had happened and the representative informed me that unfortunatley there is nothing more they can do. I let him know I understand and would appreciate if I could be given the credit I was promised and sadly I would have to leave after almost 10 years of being with them. He said all the credit I can get is for him to waive my last bill but I still would need to pay early cancelation fee for my lines since I am still in contract till August of 2013. I requested to speak with someone at a higher position and I was told there is no one that can assist me. I visited one of their stores today and the sales person called the loyalty department and again the same thing. I am so dissapointed and feel so cheated. T-Mobile owes me a proper credit for all the inconvenience and stress they have put me through. I am hoping the proper department will recieve my filing here and will correct this issue and show me the same loyalty and respect that I haven given T-Mobile for the past 10 years.