Is short code # 5803 a legit Telus contact?

[chumau]

The following text was received today from 5803. Seems "phishy".
1) Is it legit?
2) If so, why the confusing/shortened "bit.ly" URLs?

"TELUS Exclusive: for a limited time, get up to 30% off select accessories.

Visit your nearest TELUS store to shop the latest and greatest accessories including headphones, speakers, chargers, phone cases, screen protectors and more.

Find a participating store near you, https://bit.ly/FindStoresAccessories. Visit us online to shop deals, https://bit.ly/Taccessories.

Conditions apply. While supplies last. Msg opt out: respond unsubscribe or click https://bit.ly/Tunsub"

[JamesStewart]

Using Unshorten.me, those short links do have TELUS destinations:

• bit.ly/FindStoresAccessories » www.telus.com/resources/stores/?campaign=accessories&INTCMP=sms_telus_mkt_mob_ren_bfgeofencing_
• bit.ly/Taccessories » www.telus.com/en/mobility/accessories/category/sales?CMP=sms_telus_mkt_mob_ren_bfgeofencing_
• bit.ly/Tunsub » optout.telus.com/cmp-unsubscribe/unsub