1MB of data costs 1€ so when your out of your monthly allowance, that will be used up very quickly.
i.e. google play store update of chrome would be 38MB, so if you had 38e a background app update would use up all the credit
@robbie Hi there 👋 I see that @billbond4 has been giving you some great advice 👍 Don't forget that you can check your usage on My3 and if you've any queries let me know 👌