UNFAIR CLIENT TREATMENT!!!

3 weeks or a month ago I reported to FNB connect that my phone is slower than normal when I am at home and a lady advised me with internet settings and to my surprise I still had a slow response of the internet when I was at home. after logging a complaint on Tweeter, the matter was referred to complaint department and a lady who spoke to me said I may be allowed to port to another network as my problem couldn't be resolved. I then called the call centre and a gentlemen said to me I still have to wait for the 90 days period before I can port to another network. my worry is that this is not my fault that there is no coverage in my area and now it seems like I have to take the blame for the poor network coverage. UNFAIR OR POOR CLIENT TREATMENT!!!