Unlimited UK eSIM: Are there any types of calls or texts I cannot make?

You will not be able to make any international calls or texts, however, you can still call and message through WhatsApp. You will also be able to receive international calls. Your call plan does not include premium-rate numbers (numbers starting with 0843, 0844, 0845, 0870, 0871, 0872, 0873, 09).