Generic Women's long swim top pink floral tags says 2xl but is smaller

Women's long Swim top Print Drawsting Tankini Adjustable Straps criss cross in back bow tie in front band under bust goes around padded cups not a built in bra the tags says 2xl but it is much smaller like a large I don't remember where I bought it but likely modify or zoolucky where the sizes run smaller. I bought 2xl thinking it might fit. I'm a sz 40C and this was not big enough for me