Changing my pill without telling me?

Fee

So I usually take rigevidon birth control pill as my main form of contraception

But I opened my latest prescription up to find that I have been given levers birth control pill

I opened my prescription today after finishing my last rigevidon pill

I was not aware that there was going to be a change and feel quite uncomfortable about this change being made behind my back

My question is is this right and should I be informed?

Will I need a period for my body to adjust to this new pill?

Have any of you had this happen?

I really feel quite uncomfortable taking this without knowing where I stand and I don’t want to change my pill because I know I get on with it