CHRISTMAS delivery slots at supermarkets have ‘sold out’, leaving shoppers facing a scrum in the aisles to buy their festive food. Supermarkets are urging customers to give up slots. Tesco alone has almost doubled its available delivery slots, to 1.2m a week, since the outbreak of the pandemic. Online grocery sales have jumped from 7% of overall sales to 13%. But availability. Find out when Tesco Christmas delivery slots open for booking, with exclusive early access to slots and other great benefits for Delivery Saver customers. We use cookies to give you the best possible experience on our site. Last week Tesco expanded its food delivery and click-and-collect capacity to around 780,000 delivery slots - up from 660,000 two weeks ago. New slots are released every night at midnight but there.

Tesco has apologised after its website struggled to cope with demand from shoppers trying to book Christmas delivery slots.

The supermarket giant had to install an online queue system to help it manage the “high volumes of traffic”.

Shoppers on social media complained about the delay, saying they were being made to wait for hours.

Tesco tweeted in response to apologise “if things take a bit longer than usual”.

“A lot of customers are using our website and app at the moment,” it added.

Supermarkets have seen overwhelming demand for online delivery slots, with rival Ocado already running out of slots due to the spike, although more may be made available in early December.

A Tesco spokeswoman said: “Demand for online slots over the festive period is high, and we have more slots this Christmas than ever before.

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“We experienced high volumes of traffic to our website and groceries app this morning and temporarily limited the number of customers using it.

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“We’ve now removed the waiting room and customers will be able to log straight on.

“We’re sorry for any inconvenience this caused and would like to reassure customers that there are still slots available for home delivery and click and collect over the Christmas period.”