Nigel's Shoe Repairs did a good job of cutting my blank key in Perth city. $15

now i need to reprogram the immobilizer transponder chip for that spare key.
I read that they can just read the frequency off the original key to reprogram the new transponder. No need to reprogram the immobilizer unit.
Anyone can confirm whether this is true?
Burswood Honda said they can reprogram for $60 but cannot guarantee it will work because the chip may not be the same?
How can I check the chip ID required for a CU2?

There is A1 locksmiths & Diamond Lock and Key who may be able to reprogram but they also said that they cannot guarantee it will work.
Not sure about the price though.