I'm Lindie, and I’m a moderator for this topic. I sent your requested professional a message to follow up with you here, when they are back online.
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Thanks for your question and asking for me.
As the property is not within the UK or the EEA then I am afraid this has to be treated as just rental income,(rather than furnished holiday lets) and that being the case, you can only claim expenses that arise during the period of actual letting, so in essence 15/52 weeks, so this does need to be rectified with HMRC.