Hi,
Sorry to hear to are feeling upset about this.
If I was you, I'd give them a ring back and rearrange the appointment. Even if you have to lie and say you will be away on holiday on 1st Nov.
Get appointemnt before the 1st, during your cd1-10 or if they cant book you appointment that early, then work out your dates for next cycle and book it for then.
good luck x