Shipping showing as £0.00

Hi I am having a problem with shipping when checking out, Royal mail and parcel force work fine, But when I try to set up dpd I enter the amount, geo settings set right etc then at checkout dpd shows as £0.00 this also happens with tracked 24hr and 48hr. Can any one help with this please thank you.
opencart version 1.5.6.4

Nick

All sorted I had to put a figure in free shipping from, I had left it blank at first.