I have no account — what should I pick?
Get a ready account — ChatGPT Plus already active, credentials emailed instantly (Plan A).
Can I top up my own account?
Yes — see Plan B: get a physical Giffgaff number, then buy GPT top-up ($20) monthly. For $100 / $200 plans, tap Top up your own on the account card to contact support.
Why does login need an SMS code? Is a number required?
Not always — it depends on whether verification randomly appears at login. Once required, you need an overseas number to receive the code.
Why not use one-time SMS? What is re-verification?
OpenAI often asks you to log in again days later, requiring the original number. One-time SMS can't be reused — the account may be lost. Short-term: 30-day SMS; long-term: Giffgaff SIM (Plan B).
Can the number be renewed? What about long-term use?
US virtual SMS is non-physical — valid est. 15–30 days; buy a new number when it expires. Long-term: Plan B (Giffgaff SIM + monthly GPT top-up); or Plan C (US iPhone SE2 + Giffgaff eSIM).
