Help with some some Italian phrases please!

Ha un brutto cuore e non può salire le scale / su per le colline.
Per favore ricoglierci il fondo della collina

Is what i would say but i’m sure someone who is a native speaker would correct me!

"la signora ha problemi di cuore e nn riesce a salire le scale/la salita/la collina.
Gentilmente se lei ci puo' venire a riprendere la' giu' (indicate where you want to be picked up)

They've given Matera a big revamp and clean up for the European city of culture thing and I believe there are shuttle buses taking you from the massive carpark at the bottom of the town up into it.

There are lots of veggies- absolutely, but being vegetarian won't be without its hassles tbh. I WAS vegetarian when I arrived here (Puglian coast) 25 years ago, but gave up (after having been vegetarian for over 10 years)
Things are improving- but there is still the prevalent idea that if you're vegetarian you will either a) not consider salami and squid to be vegetarian or b) you will want brown rice and tofu because you're weird!
Though they eat loads of pasta dishes with only vegetables (you must try orecchiette with cime de rapa) they wouldn't think that was vegetarian (even though it's pasta with a form of short broccoli) iyswim?
You will be fine though-as you say, there ARE loads of wonderful vegetables!

Sorry Goofy but Allday got it almost right.

"la signora ha problemi di cuore e non riesce a salire le scale/la salita/la collina.
Gentilmente potrebbe venirci a riprendere a ...... (indicate where you want to be picked up)
- tra (in)..... quindici (15) minuti , trenta minuti (30 min) , un'ora (1H)
- ( or just say the time straight so ) alle due (2pm) di pomeriggio, le quattro (4pm) , le sei (6pm) .

You might also want to ask for his mobile number/

Ci potrebbe dare il suo numero di telefono cosi quando siamo arrivate la chiamiamo e ci viene a prendere? Could we have your mobile number so when we are there, we call you to come and get us.