Argos drivers are set to go on strike just days before Christmas in a dispute over pay.
The union said the three day walkout from next Tuesday will cause “mayhem” to Christmas deliveries.
Argos have said they have plans in place to prevent deliveries from being disrupted.
Members of Unite who are employed by Wincanton, a separate company are engaged in the dispute over holiday back pay.
Unite regional officer Rick Coyle said: “This strike by our members will cause havoc and mayhem to deliveries to Argos shoppers in the run-up to Christmas.”
“There will be a lot of very unhappy Argos customers, if they don’t receive the iPhones, TVs and white goods that they have ordered as presents for relatives this Christmas.”
He also said strike dates are being announced as a last resort and “Unite’s door is open 24/7 to try and settle this long-standing dispute”.
This strike comes after hundreds of thousands of passengers on Southern Rail are being faced with disruption and delays just before Christmas and Post Office workers are planning a walkout next week.