Hey, I had an appointment at dermatology for a mole on my face as it’s two different colours and a irregular shape, I had my appointment on Tuesday and got a notification on my nhs app saying I should receive a phone call between Wednesday and Friday, I kept looking on the nhs app for anything as I’m worried I just want to know, on the nhs app it says I have an appointment but I haven’t receive a phone call as of yet  so I’m unsure of what to do, do I call them and ask or?