Changing wegovy pill suppliers

[seasally]

I bought my first pills from Medexpress for £59.99. The proposed next delivery will be £100.
I'm only on day 3 so have a few weeks to go but I wondered if everyone is taking a new customer offer each time or just sticking with the original supplier?
And if you do change at what point do you reapply?

I’m on a different weight loss medication but the principle is the same. Yes I would absolutely change to another supplier to avoid a big price increase. I reorder after 3 weeks so that I’ve got time to sort any issues out.

Thanks @ImitationOfDignity thats helpful. It's very much early days but I'm planning ahead!