Lusa received reports from customers of the supplier who, after periods without regular billing, have recently received bills with high values, some of hundreds of euros.

When questioned about the explanation for the continued delays, the number of customers affected in recent months and the solutions presented, Galp chose not to comment.

In early March, as part of the presentation of the annual results, Galp's co-CEO, João Diogo Marques da Silva, was questioned by Lusa about billing delays that affected several customers, explaining that, at the end of 2025, there was a "change in billing systems".

According to the executive, customers were then warned that there could be "some instability in the billing process during a certain period," with "the possibility of phasing the payment if there was a delay in the level of the invoices themselves."

"Obviously, we cannot abruptly recover from a situation that at the end of last year involved several thousand customers," said João Diogo Marques da Silva at the time, stressing that the situation "tends to stabilise."

The co-CEO then pointed to the intensity of calls to call centres as a sign of this stabilisation, which he said was already "at almost normal levels."

"So, I would say that at this point it is a closed issue," he indicated in March.

The situation had already been signalled by DECO, which indicated that it had received, since the end of 2025, contacts from consumers without electricity and/or gas bills from Galp, considering the accumulation of amounts in the winter months, when consumption tends to be higher, "naturally worrying."

The consumer protection association advised consumers to check if the charges are more than six months old, in which case they can invoke the statute of limitations, or to request payment in instalments for more recent amounts.