Table rate shipping is being overruled?

Hi!
I set the table rate to: €0- €20.99 = €2,44 (€2,95 incl.).
€21.99 – €49,99 = €4,09 (4,95 incl.).
And last one €50 – * = free shipping.
But now whenever a customer orders something above €49 to €49,99 there are no shipping options available, only “collect” (afhalen in dutch).
And when they order above €129 they have to pay €2,95 for sending while this ofcourse has to be free.
Any ideas on why this happens?
Thanks in advantage.

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