"Many venues in London are completely booked out until 2023 and those that aren't yet have hiked up their wedding packages by about 15 per cent."
She added: "The last year has been pretty ropey to say the least. It's just been a constant up and down. I've struggled, living in London as it's expensive.
"I think I'm still processing what was said because I wasn't expecting there to be no restrictions in June - that feels very quick for me personally.
"My diary now is completely packed for the rest of this week with consultations."
It is hoped an unlimited number of guests will be allowed to attend weddings from June 21 as all restrictions are scrapped - but the PM has stressed this will be reviewed nearer the time.
And Rebecca fears that even once restrictions are lifted, not everyone will be able to book their Big Day.
"With London in particular there are people living here from all over the world," she said.
"Due to the international travel rules, those people with family abroad still might not be able to get them over here in time for the wedding. "
Under the PM's roadmap, up to 15 attendees - including brides and grooms - will be allowed from April 12.
This number will rise to 30 from May 17 - despite 1,000-person indoor events allowed to take place from the same date.
On Monday Boris announced: "We will aim to remove all legal limits on social contact and on weddings and other life events.
"We will reopen everything up to and including nightclubs and enable large events such as theatre performances above the limits of step three - potentially using testing to reduce the risk of infection."