My mate had quite a big area done, 2 new fences etc etc etc and got a verbal quote that included some sort of sealed finnish to top it off.
I have seen all the pics of the digger, old garden and fences out, in with all new concrete posts and concrete foot boards as well as edging to block pave up to. Down with the base and compacting, then same with the sand, in with the paving and a couple of borders and patterns in it. All finshed off and tideied up. Payments were made before starting and during the work as it progressed with all the money being fully paid up half way through the paving going down.
All 100% so far, my mate enquired about the sealant/finnish to be told they had never talked about that and it would be extra. Big big argument and a parting of company, a few irrate calls off my mate wanting what they had agreed on, sadly all he got was about 5/10 gallons of used engine oil all over his drive and a massive bill to have it professionally cleaned/
All the police said when contacted was, can you/have you any proof of who did it it Sir.
Sounds like you nailed a good deal, make sure you get all the right paperwork singed off them, if not sneal some pictures of all the workers whilst working for future reference.
