notadictionary.com
お世話になってるお茶屋さんから注文きた。
→ “The tea shop I'm in business with just placed an order.”
お世話 osewa = favor / courtesy (n.)
お o = honorific prefix
世話 sewa = care / management / favor
に ni = to / for (particle)
なってる natteru = am being / am in the state of (v.)
なる naru = to become / to turn into
てる teru = colloquial contraction of 'te iru' (continuous aspect)
お茶屋 ochaya = tea house / tea shop (n.)
お o = honorific prefix
茶 cha = tea
屋 ya = shop / store
さん san = Mr./Ms. (honorific suffix)
から kara = from / since (particle)
注文 chuumon = order / request (n.)
注 chu = pour / direct attention
文 mon = text / message
きた kita = came / arrived (v.)
来 ki = come
た ta = past tense marker