For anyone who prefers to pay TP in cash, I just learned (perhaps the last person on the planet..... again??) that if you download your TP statement in PDF format, there is a bar code that appears upper right.
Take that to Intercam and cashier can scan and take payment. Head office assures me is instant credit, like Oxxo. (Forgot to ask if for acct holders only.... sorry)
Why do I care? Because Oxxo got us for $700 pesos on June 3 with same trick they've pulled once before (and we didn't check receipts well enough ☹️) so today spent a VERY long time getting phone, Mexican channels TV, and wifi restored with 5-day extension granted while TP tried to sort out. Plus I have to repay, at the "non-pronto pago" rate. GGRRRRR
However, TP people were excellent as always.... customer service as well as tech support.