She met with me and agreed on a price and send me a quote (which was the first quote she has ever sent to anyone) and it was all A-ok.
The task was supposed to be over 4 days straight and after giving her a deposit I decided to break it up over 2 lots of 2 days periods so I could do some testing in the middle.
Now that the first half is done she has sent me an invoice for the total amount we originally agreed on - I emailed to check that amount was for the 2nd part of the task as well (paid in advance) and she's said no that will be 50% extra now as the project is essentially two parts and not one.
The amount of work is the same, the task is the same now she wants me to pay extra because the structure has changed.
We are already half way into the project but I am feeling pretty annoyed as there was no updated quote sent and no discussion about the fact she would charge extra.
I will probably keep the peace and pay it but I find this really poor business practice.
It will certainly make me wary of working with old friends again. I think she thinks because I have been in business for a while she can charge me premium rates, either way I'm considering giving her a heads up about basic business etiquette re quoting etc.
Hopefully I am not overacting.