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Oasis and Warehouse are owned by the same company Credit: Alamy The struggling retailer stopped trading online last Wednesday, even though it is allowed to under current lockdown rules.
It blamed the rising cost of fulfilling online orders and associated logistical challenges associated with the lockdown, such as implementing social-distancing rules.
Rob Harding, joint administrator at Deloitte, said: "COVID-19 has presented extraordinary challenges which have devastated the retail industry.
"It is with great sadness that we have to announce a sale of the business has not been possible and that we are announcing so many redundancies today.
"This is a very difficult time for the group’s employees and other key stakeholders and we will do everything we can to support them through this."
It's the latest victim on the high street that's fallen due to the pandemic's impact on the economy.
Earlier this month, Cath Kidston announced that all 60 of its shops will remain closed after the lockdown is lifted, putting 900 workers out of a job.
Eleven Debenhams stores will also remain closed in the aftermath of the virus outbreak, with the loss of more than 700 jobs.
The department store is currently in administration for the second time in a year .
And fashion brand Laura Ashley has also gone bust , axing 2,700 members of staff from the payroll.
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Debenhams falls into administration with 50 stores to close as part of deal to save the chain machibet777.com