There are some centres that do no support breastfeeding, although most do. I have also heard of centres who do not allow the mums to come in to latch on during the day. I guess maybe some of the centres are afraid of contamination and hygiene issues too with regards to handling breastmilk.
Please speak with that centre supervisor properly to see how they can partner you. If you really would like to breastfeed, then I guess you have to find another centre which does.