I originally planned to go during the break, but I couldn't even register an account for the lottery beforehand. I finally managed to borrow a number from someone on the island to grab tickets, but I didn't get a single one. I'm losing it.

I originally planned to go during the break, but I couldn't even register an account for the lottery beforehand. I finally managed to borrow a number from someone on the island to grab tickets, but I didn't get a single one. I'm losing it.

Honestly, changing your number might not even fix it—getting through the ticket-grabbing step is the real hurdle.
Quick question about the registration issue you mentioned — is the page throwing an error, or are you not receiving the verification code? These two cases call for completely different approaches. The former is usually a regional or network problem, while the latter may mean the number itself doesn't support this type of SMS. Also, if you're just borrowing an account to grab tickets, you'll want to consider whether picking up the tickets or entering the venue later requires verifying the person's identity — you don't want to end up with tickets but get stuck at the entrance.
If you just want an extra layer of preparation before invoicing, you can first check the official requirements for account registration location and phone number ownership, then decide whether it's worth continuing to fuss over the number; the premise is that the rules allow it, otherwise the time you invest may not pay off.
Putting in all that time and energy and still getting nowhere—that gap is the hardest part to swallow. Best to take a step back for now.
About borrowing a local number—I'm a bit curious. Registration restrictions really do vary by region; in some places you can't even see the lottery entry. You should first check whether your account's region is what's blocking you.