It's Birkins at dawn as a spicy fashion spat breaks out

We’d probably ask Victoria Beckham to lend us her credit card for the day if we could call in a favour from her.

Instead, Geri Halliwell’s been asking her old mate for fashion advice after landing a deal to design her own high street swimwear range.

And sources close to the new queen of British fashion say she is not amused.

Victoria’s dresses have been worn by some of the most beautiful women in celebland, including Cameron Diaz and Elle Macpherson, and she’s finally being taken seriously as a designer in the fashion world.

But the fashionista isn’t interested in helping Geri with her swimwear collection for Next.

‘It’s really starting to piss Victoria off,’ reveals a friend of the 36-year-old star.

Geri tried to get in touch several times and it got to the point where Victoria was ignoring her calls.

Geri kept saying: “Now we’re both designers,” to Victoria, who found it completely insulting that she would even compare their collections.’

As we reported last month, Posh has been preoccupied looking for a New York bolthole to buy.

She’s also preparing for a possible three-month stay in the UK.

But sources close to the couple say Victoria will be far too busy to invite Geri, 38, over to Beckingham Palace for tea.

Read the full story about Victoria Beckham and Geri Halliwell in Now magazine dated 17 January 2011 – out now!

SEE PICTURES Victoria and David Beckham launch new fragrance Signature in New York>>

SEE PICTURES David Beckham‘s changing hairstyles>>

SEE PICTURES Victoria and David Beckham: A love story in pictures>>