Check the affected SIM
Open your Kettle account and confirm that the connection is active. Look for a pending change, payment issue, restriction or exhausted data allowance.
Try these checks
Turn flight mode off and restart your phone.
If you have more than one SIM, check that the intended line is selected for calls and mobile data.
Check that mobile data is enabled for that line.
Try another location to see whether reception changes.
Check the remaining data and its last-updated time.
Do not delete an eSIM, buy repeated add-ons or change unfamiliar network settings to resolve a fault.
Tell support what is affected
Contact Kettle with the phone model, the approximate area, when the problem began, any error message and whether it affects calls, texts, data or all three. Tell us if it started after a number transfer, phone change or trip abroad.
Remove QR codes, sign-in links and private details from screenshots. If a payment or network request is pending, include its reference so we can check the existing request.