how can i fix my [vhs video tape] k6-7(LID) 142030826MW T-65 (BOTTOM)?

i recently bought a brand new vhs video tape and the screen is all fuzzy (unseeable) but the speach is coming through the speakers , but sounds slower than it should be, as if the tape itself isnt moving fast enough.
I have tried all my other really old videos but they all work o.k.
I must admit it is an old video player but i've never had a problem and have the heads cleaned regularly. The casing inside seems very loose and can feel the inner wheels shaking about, my other vhs video tapes do this but not as much. i've had this tape imported from America (i think) to the u.k. And, waited so long to watch this documentary (4 years) Please could you help me rather than send it back. Basically the tape seems to play too slow and no picture comes up, although you 'can' tell somethings trying to
come through. I' VE TRIED ALL MY OTHER VIDEOS AND THEY WORK FINE...
The item is a documentary on turntablism and I really could do with it for my music course.
Very grateful thanks. P.S on the underneath of the tape cover it says:
"k6-7" & on the bottom of the vhs tape it says: 142030826MW T-65. "THANKYOU V. MUCH.."