If you do it the correct way it might work, I know many people try this and it doesnt work out.
But honestly if your hoster wont answer your support ticketd theres probably gonna be a lot more issues in the future. Your much much better off getting a new host, that way you wouldnt have to deal with these problems or hopefully future ones.
What do you mean by 'correct way'?
EDIT:
Also, is this client side or is this server side? I pulled this from the developer console:
Mounting hl2.. OK
Mounting cstrike.. OK
Mounting dod.. SteamMountDepot: Error SteamMountFilesystem 300 - (dependency 4 (301))
SteamMountFilesystem(869,301,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting ep2.. SteamMountDepot: Error SteamMountFilesystem 420 - (dependency 2 (421))
SteamMountFilesystem(869,421,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
SteamMountDepot: Error SteamMountFilesystem 420 - (dependency 3 (423))
SteamMountFilesystem(869,423,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
SteamMountDepot: Error SteamMountFilesystem 420 - (dependency 4 (422))
SteamMountFilesystem(869,422,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
SteamMountDepot: Error SteamMountFilesystem 420 - (dependency 5 (308))
SteamMountFilesystem(869,308,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
SteamMountDepot: Error SteamMountFilesystem 420 - (dependency 12 (213))
SteamMountFilesystem(869,213,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting tf.. SteamMountDepot: Error SteamMountFilesystem 440 - (dependency 4 (441))
SteamMountFilesystem(869,441,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
SteamMountDepot: Error SteamMountFilesystem 440 - (dependency 5 (442))
SteamMountFilesystem(869,442,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting episodic.. SteamMountDepot: Error SteamMountFilesystem 380 - (dependency 6 (308))
SteamMountFilesystem(869,308,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
SteamMountDepot: Error SteamMountFilesystem 380 - (dependency 7 (213))
SteamMountFilesystem(869,213,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting hl2mp.. SteamMountDepot: Error SteamMountFilesystem 320 - (dependency 4 (321))
SteamMountFilesystem(869,321,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting portal.. OK
Mounting lostcoast.. OK
Mounting hl1.. SteamMountDepot: Error SteamMountFilesystem 280 - (dependency 4 (281))
SteamMountFilesystem(869,281,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting hl1mp.. SteamMountDepot: Error SteamMountFilesystem 360 - (dependency 4 (281))
SteamMountFilesystem(869,281,0xb55d9c61=,0xb55d9d60) failed with error 116: Cache needs repair
OK
Mounting zeno_clash.. No permission
Mounting left4dead2.. Disabled
Mounting left4dead.. Disabled
Mounting diprip.. Disabled
Mounting zps.. Disabled
Mounting pvkii.. Disabled
M
If it's server side then CS:S is mounting it, but not using the files. I'm so confused.