I had a really bad experience with lankabell. I tr...

I had a really bad experience with lankabell. I tried to check the bill through online billing and on 01/06/2016, it was 4300 and today it is 8300. It should have changed on 28/05/2016 but now they updated new rental with added government tax. And when I called them to ask the new rental , they told me it won't have much change. And their reason was Lankabell is goverment owned organisation. It was my fault to believe everything customer service say.