I had trouble purchasing a through reward booking way back in October for our return flight home from MIA-MAD-LHR. so I booked them separately even though at the time it was showing as available as one through ticket. Even Iberia couldn't sell me the reward ticket for some reason, they said it was an IT fault.

We are coming back from MIA to MAD in business and then economy with Iberia to LHR.

When I check in at MIA will they be able to ticket through my luggage? I also have another separate BA reward booking up to Leeds. I understand they may not be able to do that, so we will need to collect the luggage in LHR. Or is it possible to ticket the luggage straight through to Leeds?

I have two hours inbetween the flights at MAD and LHR and 3 hours LHR and LBA. If I ring IB now, will they be able to link the two IB flights together? We fly in July.

Sorry for all the questions and thanks in advance for any helpful replies.