What to use next to caulk contained by shower wrap around ? the caulk needs replaced but the first showing is wider than 1/4...

the caulk needs replaced but the first showing is wider than 1/4 inch and deeper than 1/4 inch. have replaced next to silicone, didn't work, tub/tile caulk w/some silicone, no way...what can i use to steep the gap and slim down the size of the opening and after caulk over it?
How do I return with an HVAC license...
Answers:    at your neighbourhood hardware store they should go a filler by the caulk that is made of a foam stuff and it is used to fill gap before you caulk them
Ceiling Falling?
If you enjoy tile in your bathroom purely get some more tile grout and put surrounded by in the notch let it dry (24 hrs.) afterwards you can caulk it again to seal it sour.