I have been using reliance prepaid gsm since 5 years. Recently I have been repeatedly getting delayed and duplicate messages from one of my contacts. We have been texting back and forth for quite a while with no problems, but ever since our conversation crossed 1000 messages mark I have been facing this strange issue.
Sometimes I receive my contact's messages delayed by 5-10 minutes. I also repeatedly receive duplicate messages from previous day's conversation. It has come to the point that I receive around 5-6 messages daily without my contact even sending them.
I have tried replacing the sim, done hard reset and switched handsets, but the problem still persists. I have given up hope contacting the customer care as they are always out of reach. Is switching to a new carrier my only option?