tailgate leak help/advice

right spent hours today with the hose pipe on the tailgate and found the following leaks
1 tailgate seal had a pin prick hole so i used tigar seal to fill and cover the seal



job done not leaking there BUT still leaking into car





this cnt be normal and there is just no room to sort it hers a pic of where in the boot

Well been out since 8 this morning with the hose pipe after I found the carpet was DAMP again and wet underneath

All I can find is this area in pic below a very very small drip and it's only every so often really odd