He is one of the world's most successful pop star but Justin Bieber was left mortified when his card was declined at sandwich shop Subway. Justin Bieber's credit card was declined at Subway. The 22-year-old pop star is worth millions and was no doubt left embarrassed after a fan reportedly recognised him and offered to pay for his meal at a branch of the sandwich shop in West Hollywood on Thursday (01.09.16). A source told DailyMail.com that one of the 'Sorry' hitmaker's beliebers footed the bill for his impressive order of a foot-long sandwich, four bottles of milk and cookies. The pop hunk dropped by the store on 8859 Sunset Boulevard with his girlfriend Sofia Richie, who was waiting in his car. The couple had taken a visit to Barney's in New York on the same day as Bieber's Subway pitstop. It comes after the 'What Do You Mean?' singer and Sofia - who is Lionel Richie's daughter - jetted off to Cabo San Lucas, Mexico, for her 18th birthday at the weekend and amped up the heat after sizzling pictures of them locked in a series of steamy embraces - and with Justin semi-naked - emerged on the internet. Meanwhile, Justin is currently on a hiatus from Instagram after he shocked Beliebers across the world when he decided to deactivate his account on the photo sharing platform after a public spat with his ex-girlfriend Selena Gomez. The 'As Long As You Love Me' hitmaker opted to close down his profile when he feuded with Selena, 23, over a comment he made about his fans being mean to the people he likes. He wrote at the time: "I'm gonna make my Instagram private if you guys don't stop the hate this is getting out of hand, if you guys are really fans you wouldn't be so mean to people that I like (sic)" However, Selena wasn't having any of it, telling the star: "If you can't handle the hate then stop posting pictures of your girlfriend lol - it should be special between you two only. Don't be mad at your fans. They love you (sic)." And Justin soon fired back: "It's funny to see people that used me for attention and still try to point the finger this way. Sad. All love. I'm not one for anyone receiving hate. Hope u all can be kind to my friends and each other. And yes I love my beliebers (sic)."