TV licence question

[Parrot of Doom]

I cancelled my TV licence as I no longer watch it.

They've sent me two cheques for about £35 each. Both identical letters, identical amounts.

Do I cash both, or is this a clerical error?

[Uncle Fester]

It's a repeat.

[cal72]

It could only happen from the BBC.

[omgus]

Uncle Fester said:

It's a repeat.

[TuxRacer]

Let them know quickly, before someone in a detector van sees you've got two cheques.