MsgBox pops up twice in this sub?

I do not understand why the MsgBox pops up twice if I enter a character other than what is specified (P, T, F or leave blank)?
The text in the MsgBox only exists in this sub and no where else.

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Any hints, tips, examples or aspirin is appreciated.

I think I know why. The macro performs its code processes through the Call's and has to reroute back through again.
I ended up adding

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in the Case Else event.

This also meant I can remove this code from th esame event as I think it is not needed.

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