Talk:Czech Republic/@comment-31.154.41.67-20170131093827/@comment-24682153-20170201121319

This is mentioned in the Base chapter:

"Unlike in many other European countries, you will lose all credit on a Czech SIM card, if you don't top-up your balance periodically; periodic usage is not enough."

With Vodafone this means to top-up at least every three months. O2 and resellers every 6 months and T-Mobile up to 12 months. This differs between providers and resellers, but is somewhat unusal in Europe, because the whole plan will be discontinued otherwise and the remaining credit will be lost.