Talk Talk is the most complained about ISP, according to new data from telecoms regulator Ofcom.
The watchdog published its latest complaints figures on Tuesday, revealing the most complained about major telecoms providers between July and September 2011.
TalkTalk fared the worst between July and September, with 0.77 complaints per 1,000 customers. Problems relating to billing and customer service topped the list.
The least complained about ISP over the same period for the fourth quarter in a row was Virgin Media with 0.19 complaints per 1,000 customers.
Meanwhile, mobile complaint levels are much lower than for landline and fixed broadband services.
Three received the most complaints, at 0.14 per 1,000 customers, mostly driven by disputed charges and customer service problems, Ofcom said. There was an increase in complaints against Virgin Mobile over the past quarter, driven by billing and customer service issues.
The least complained about mobile provider over the same period was O2 with 0.02 per 1,000 customers.
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