Talk:Hungary/@comment-26674008-20170221053210

To top up with Telekom online with credit card, I see there's no English interface. It's very possible to do even if you don't speak Hungarian. The top-up page is here: https://www.telekom.hu/shop/feltoltes?s=e1s1

You only enter your mobilszám (phone number) then on the next page select amount to pay, 1500-15000 HUF in increments of 100. You may select "Más összeg" to enter a custom amount. You can leave the check boxes the default, unless you want a second confirmation sent to e-mail or some other phone number additionally.

The only place to make a choice is on the next page, you will want "Bankkártya: A feltöltési összeg kiegyenlítése az OTP online banki felületén" so you go to OTP to pay (other option requires registration), then it is just CC details as usual, the CC number, cardholder name, expiration (HHEE = MMYY) and 3 digit code. Issuing bank name goes in top-right corner, I do not know why they ask this.

If you've no want to deal with Hungarian at all, then maybe try https://etopup.hu from which one can top up all carriers in English.