How to allow premium texts

Hi
anyone know how to allow premium texts on a lebara contract. Just for donation to charity or entering competitions etc. currently blocks me doing it ?

You would need to top up your phone. Lebara works as hybrid pay as go / contract. All your allowances are free but anything outside that requires top up. You cant overspend as spend cap is 0. You can top up or turn on auto top up

Thanks 🙏