Data issues AGAIN

I have sent numerous emails which no one bothers to respond to. On 28 Sept I purchased the app promo of 3 gig data. I received a 3 gig bundle and an additional 2gig bundle instead of 3gig. I emailed customer service as soon as I saw this but have yet to receive a response. I also then suddenly started incurring out of bundle costs even though there were data bundles available and these were decreasing as well. How can I be charged for data usage if there are active bundles and they are being used for data? I expect the data bundle to be corrected and the data usage costs to be refunded.