What is the complaint reference number?

The complaint reference number a number provided by your supplier whenever you contact its Customer Service to make a complaint or inform them of a problem.

If you have not contacted your supplier's Customer Service, this must be the first step you take.

If you have already contacted your supplier's Customer Service but cannot find the complaint reference number they gave you, please contact them again; , they will be happy to assist you.


Customer Service

If you are billed by
Endesa Energía XXI
800 76 03 33
365 days a year,
anytime
If you are billed by
Endesa Energía
800 76 09 09
365 days a year,
anytime
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