Glasgow 2014 organisers have apologised "unreservedly" for the mistake and are working with Ticketmaster, which uses TalkTalk as a supplier, to refund customers "as soon as possible".
A spokesperson for TalkTalk has attributed the mistake to a "human programming error" and admitted it did not deliver the service it had agreed with ticketing provider Ticketmaster during the general ticket sales.
The long waits to get through to the ticketing hotline have meant some callers have been charged more than £100 for their calls, according to a .
The mistake is the latest in a , which the organiser has admitted could take days to resolve.
Online sales for 100,000 tickets released on Monday were eventually halted at 6pm on Tuesday, after long delays and problems completing transactions.
Public frustration with the ticketing process has led to an outpouring of anger on social media sites, as people complain about the problems they have encountered.
Been in the queue since 1200 today and this happens. Disgraceful.
— Simon Henderson (@simanchu)
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