I've been with CenturyLink for 6 years for landline phone and internet. It seems that every few years THEY SCREW SOMETHING UP! In 2010 one monthly bill was $270 when the correct total should have been $87. Took several days of emails & phone calls to management office to get that fixed. In 2011 minor billing error for long distance corrected with 2 emails to management. On 6/1/2016 after seeing numerous TV commercials about faster internet I did online chat with Madison M and was told I could upgrade from 10Mbps to 25Mbps for only $7/mo more than my current monthly total of $72. Aside from the fact that it took 9 days and numerous contacts before I actually got the upgrade, on 7/30/2016 I discovered that instead of the $79 correct total, Century just billed me over $125! Thus, if you have CenturyLink or move to it from another service provider DOCUMENT EVERYTHING THEY SAY IN WRITING & CHECK YOUR BILLS EVERY MONTH!!!