1. **"Thankyou"** → **"Thank you"**: it's two words.
2. **"there Christmas cakes"** → **"their Christmas cakes"**: "their" shows possession; "there" is a place.
3. **"Collections is"** → **"Collection is"**: a plural subject needs "are", but the singular reads more naturally here.
4. **"til"** → **"until"** (or "till"): "til" is informal and often seen as a misspelling.
5. **"dont"** → **"don't"**: it needs an apostrophe.
6. **"loafs"** → **"loaves"**: this is the correct plural.
7. **"boxes for loafs"** → consider **"boxes for the cakes"**: the message is about Christmas cakes, so "loaves" may make readers wonder whether it applies to their order.

The dates check out, since 18 and 19 December 2026 fall on a Friday and Saturday. You might also add where to collect from, unless your readers already know.