I have an LG D852 Android V 6.0 with all updates installed and am on a monthly plan (my account is up to date). Before I left Toronto, Ontario, I added the ALL40 and received confirmation. I am in Mexico and my text message won't send. Who should I contact to get this fixed? I can't call 611 and I've turned my phone off, removed the SIM card and put it back in, turned on my phone twice.