[Resolved]  Matrix Cellular — matrix data services not working

I purchased a 10 day unlimited (Data/voice) package for uk from bangalore international airport. I was promised 4g and data at high speeds. After reaching while the i was able to make calls the data was not working. It was very slow. I complained several times and the technical support recommended i change the settings to 3g and blamed the speed on coverage. The data is so slow that my wats app messages take almost 15 - 20 seconds to go. Should have bought a lyca or lebara