Its like this we take vortex as A..solemn as Counter B, Bribe as Counter C
When negated..the cost wil stil be applied
Opp activates A- Negated with B
B activated- Negated with C
As your opponent has the last chain, all cost must be paid and your opponent's A effect wil be applied as nothin else negates it (all have be chained and negated)
In other words
S1-Spell/trap activated by you
S2- Opponent negates with A
S3- You negate with B
S4-Opponent Negates B with C
S5-You negate C with D
S6-Your opponent does the final step to the link by negating your D with E
S7-All costs paid(can be paid earlier when activated though) and as your spell/trap has been negated by Opp's A (all other negates each other, A left unnegated due to chain).
S8- Get over it..chain solved..