**Apply through Greece again if Greece is your main destination.** If your genuine travel plans are for another Schengen country, apply through that country. For a holiday covering several countries, this generally means the country where you will stay longest; for equal stays, apply through the country you enter first. [European Commission guidance](https://home-affairs.ec.europa.eu/policies/schengen/visa-policy/applying-schengen-visa_en)

You can reapply after a refusal. The Schengen Visa Code says a previous refusal must not automatically lead to another refusal; the new application must be assessed on its merits. [Visa Code, Article 21(9)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02009R0810-20240611)

Your priority is to address the two reasons given in 2018. I recommend including:

- A short cover letter acknowledging the refusal and explaining how your new evidence addresses it.
- A clear itinerary, with genuine accommodation and transport reservations whose dates match.
- Evidence supporting your travel purpose, sufficient funds, and your intention to return home, following the relevant consulate’s checklist. [Required supporting documents](https://home-affairs.ec.europa.eu/policies/schengen/visa-policy/applying-schengen-visa_en)

Your UK visa—and evidence of completing your UK trip within its conditions—may provide useful travel history. **It does not guarantee Schengen approval or resolve concerns about your proposed Schengen trip.**

Which Schengen countries do you intend to visit, and how many nights will you spend in each? That will determine where you should apply.