Hire trusted experts for dishwasher repairs in North Adelaide

I have bought a Solt 60cm Freestanding Dishwasher and would like to get it connected in my kitchen

Dishwasher install - drain hose / inlet hose on the new dishwasher are not long enough to get to connection point, so will need extended. Otherwise fairly straightforward. Needs to be done by a licensed plumber who can provide invoice or certification that I can send to my insurance company. See photos of existing install. Here is link to new dishwasher https://www.thegoodguys.com.au/lg-quadwash-white-dishwasher-xd5b14wh

Fridge has not worked in a while I need a professional to help me get is functioning again.. There was a drainage issue at the time I stopped using it so perhaps something got caught and it's causing an error to to run a load . Trying to assess tho if this is salvageable or would I be better investing in a replacement and have a pro install it Budget would be 250 if possible or again considering buying a refurbished and having to pay labour for install.