On your phone, in the UK, at human hours: yes. The bends live in three predictable clauses.
Feeding a laptop from your phone is the policed clause โ some plan generations cap it even on unlimited. Hotspot-heavy? Read that line before signing anywhere.
Truly extreme users can be queued behind everyone else when a mast is slammed โ a stability measure ordinary people never meet.
Nothing is unlimited abroad; ceilings always apply โ what about roaming?
Ring or WhatsApp and ask your question out loud โ coverage, switching, a deal you're not sure about, a bill that stalled, a call that smelt fishy. We'll talk it through in plain English.
Calls: standard landline rate (020), usually inside your inclusive minutes. WhatsApp: free on your data. We give general guidance only โ we can't open or touch any network account, and we NEVER ask for passwords, one-time codes, banking or card details.