OP don’t be put off by Carryfast, give things a go and you may or may not get a foot in the door.
I once offered a job to a 21 year old who wrote in on the off chance. Not tippers, but highly specialist Euro work, top payer in my sector, easy work. He turned me down because some days he might have had to drive a van and preferred to stick with supermarkets - can’t win them all.
What Carryfast means by face fits is that exactly. I suspect the Carryfast we know and love here is the same in real life. Which is why it would have been a no thank you from me.
Good luck, besides skills an employer wants someone that won’t upset the customers, won’t cause trouble with the other drivers and basically is pleasant person, it isnt complicated.