Department store John Lewis has suspended its Click & Collect service, saying it wants to "encourage the public to stay at home" during England's third national lockdown.
The parent company also announced its Waitrose supermarkets would join other major chains in refusing entry to people without masks.
Like other department stores, John Lewis had closed its doors to customers under lockdown laws, but was allowed to continue with collections.
From Wednesday, all purchases will have to be delivered.
"While we recognise that the detail of formal guidance has not changed, we feel it is right for us—and in the best interests of our Partners and customers—to take proactive steps to further enhance our covid-security and related operational policies.”
Murphy added, “We also want to help the national effort by removing reasons for non-essential travel, so we have decided to suspend Click & Collect services from our John Lewis shops.”
John Lewis, the largest department store in the UK alongside Marks and Spencer, said it will also reduce the range of services carried out in customers' homes.
Waitrose will now have marshals at supermarket entrances, handing out free face coverings and denying entry to people who refuse to wear them, following similar decrees by other supermarkets in the last two days,
Laws enacted in the spring mandate face-coverings in indoor public areas, with exceptions, but stores have generally taken a light-touch approach, preferring to offer masks for free, but not to challenge.
In the last two days, most supermarkets have rolled out tougher enforcement policies.
Supermarkets have said that the rule does not apply to people with legitimate medical exemptions, as stated in law.
However, they have not indicated what kind of proof of such exemptions would need to be provided and how they will handle the issue.