Solving floor tile gap

[Treetops]

I'm hoping for some ideas to get around an issue I have. I've installed a replacement bath, same size as previously. I've used aqua panels in preparation for tiling. Unfortunately previous job omitted to tile fully under the bath!! So I will now have a gap of about 15mm in one floor area after tiling. See pic attached (prior to tiling panel). Any suggestions?

[sammy.se]

Do you have any spares of the original tiles? Our does the ship still sell them?

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[ayjay]

...as above, a matching tile to fill the gap, or a more extreme solution would be to build the wall out with another layer of aquapanel (or whatever it takes - the gap looks nearer to 30mm to me).

[Treetops]

Thanks both. I've managed to locate a small piece of floor tile left by previous owner. I'll now try some tile shops to try and match!! Thanks again.