Rick Ross is getting ready to drop a hotly tipped summer album called God Forgives, I Don't. Other folks who don't forgive: Zons P.R., a U.K. company suing the rapper, his sister and his manager for nearly $2 million over a cancelled Nigeria concert last year.

In paperwork filed earlier this month in the Supreme Court of New York, the British firm claims to have paid Rozay $87,500 to promote the Star Mega Jam, an annual Nigerian concert that draws upwards of 50,000 fans, AllHipHop.com reports.

Zons alleges that Ross failed to carry out his promo duties, and that when he ultimately cancelled his performance, citing "the violent events in Nigeria" as the reason he wouldn't appear at the December 2011 show, he failed to return the money he'd been paid.

The company reportedly tried to get back its deposit, and when the Maybach Music boss wouldn't fork it over, they attempted to book him for another performance. That apparently didn't work either -- hence the lawsuit.

"In truth and in fact the defendant had no intention of returning said deposit," Zons' filing reads. "To date no part of the deposit has been returned."

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