Storage Volume problems

Hi, i have an issue with my standard size storage volume.

I’m at 553 standard size units out of 1000 available units, yet my storage volume is at 74.8 cubic feet out of 68 cubic feet available and i’m unable to send any more stock in.

Has anyone experienced this before? It’s a glitch surely?

I’m awaiting further contact from support, just wondered if this was known problem.

Thanks