Complex sentence: The toll was originally 29.91 cents per kilometre, capped after 20 kilometres at $5.98, but on 1 April 2006, this increased to 30.07 cents per kilometre, capped after 20 kilometres at $6.01.
Split into simpler sentences: The toll was originally 29.91 cents per kilometre, capped after at $5.98. On 1 April 2006, this increased to 30.07 cents per kilometre, capped after at $6.01.