T-Mobile Outrageous roaming charges Nationwide

I travelled international last month and got a nasty surprise when I came back home finding that T-mobile charged me for more than $1400 in data roaming charges.

I made sure while travelling abroad to use wifi where available and turn cell data on most apps (only left voice, messages and whatsapp). When I looked at the detailed bill, I found that they charged me $15/mb for data usage. I compared roaming rates from the other three main US cellular providers and found that they only charge $1 to $3/mb for the same country and data usage.

So basically, T-mobile is charging its customers five to fiftheen times more than AT&T, Verizon or Sprint. I found this outrageous that they profit from their customers in such a blatant way. Tried to call them several times to let them know about the rates and they won't budge or find a fair compromise. Total rip-off and plainly bad customer service!