Is there a limit to how many times you can reschedule / cancel the biometrics appointment?

Applying to UK HPI from the US. I’ve cancelled my appointment once before, about a month ago, because I didn’t realize I needed Ecctis approval first. I’ve gotten Ecctis approval now, and booked another appointment, but am also in the later stages of an interview process that if it works out would grant me a skilled worker visa. So I’m wondering if I should hold off on the biometrics until I know for sure I won’t be able to get a skilled worker visa so that I have the option to get the visa fees refunded, but fear that cancelling the appointment twice means I won’t be able to schedule it again. Thanks!