For OET validity read this article: OET Validity
In case you’re worried that if you fail your PLAB 2 exam and you would like to stay back in UK or come back for re attempt within 3 attempts then you’ve two options:
- Book a cancel seat https://plabforum.co.uk/t/effective-ways-of-booking-plab2-cancel-seat/3931/2?u=userzero
- GMC does release PLAB 2 slots time-to-time, so you’ll have to be on look out for that.
In short, once you’re done with your exam. Be optimistic and hopefully you’ll get through. In case you don’t you’ll be looking for slots which don’t exist when you’ll be searching but will appear either via cancellation or GMC, which will be in high demand and will get house full very quickly. That’ll be your target.